Keep thinking of Paddington? (4,2,4)
I believe the answer is:
bear in mind
'keep' is the definition.
(thesaurus)
'thinking of paddington?' is the wordplay.
I cannot really see how this works, but
'paddington?' could be 'bear' (Paddington Bear is an example) and 'bear' is found in the answer.
The remaining letters 'inmind' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
(Other definitions for bear in mind that I've seen before include "what big game hunter may have" , "Remember and take into account" , "Consider" , "Take into consideration" .)